Patents by Inventor Malcolm Korach

Malcolm Korach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Active agent delivery device
    Patent number: 5035886
    Abstract: An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble filler of which at least about 50 percent by weight is siliceous, and interconnecting pores; and (b) a releasable active agent or precursor thereof associated with at least a portion of the filler.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: July 30, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, Harlan B. Johnson, Malcolm Korach, Dennis D. Leatherman, Robert R. Simmons
  • Active agent delivery device
    Patent number: 4959208
    Abstract: An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble filler of which at least about 50 percent by weight is siliceous, and interconnecting pores; and (b) a releasable active agent or precursor thereof associated with at least a portion of the filler.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: September 25, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Paritosh M. Chakrabarti, John M. Denison, Harlan B. Johnson, Malcolm Korach, Dennis D. Leatherman, Linda P. Reinhardt, Richard A. Schwarz, Robert B. Simmons
  • Electro organic method
    Patent number: 4515664
    Abstract: Discloses electro-organic synthesis process using a water wetted gaseous feed. Also discloses the electro-organic synthesis of hydrogen peroxide; 1,4-naphthoquinone; and organic nitriles.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: May 7, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Permionic membrane electrolytic cell
    Patent number: 4469808
    Abstract: Disclosed is the preparation of electrodes provided by depositing hydrophilic electrolyte resistant resin atop an electrocatalyst on a metallic substrate and treating the resin to cause it to flow whereby to obtain a firmly bonded assembly of resin, electrocatalyst and metallic substrate.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: September 4, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Electro organic method and apparatus for carrying out same
    Patent number: 4462876
    Abstract: Discloses the electro-organic oxidation of saturated hydrocarbons to yield alcohols glycols, aldehydes, acids, carbonates and alkylene oxides.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: July 31, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Norman R. DeLue, Malcolm Korach
  • Electro organic method and apparatus for carrying out same
    Patent number: 4454011
    Abstract: Discloses the electro-organic synthesis of carboxylic acids utilizing gaseous CO.sub.2 in a solid electrolyte electrolytic cell.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: June 12, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Malcolm Korach, Stanley R. Pickens
  • Electro organic method and apparatus for carrying out same
    Patent number: 4445985
    Abstract: Gaseous organic compounds are reacted at the surface of the electrode in a cell having a solid polymer electrolyte and externally applied current. The improvement passes water vapor to the solid polymer electrolyte to maintain the water of hydration in the solid polymer electrolyte.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: May 1, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Cathode element for solid polymer electrolyte
    Patent number: 4394229
    Abstract: Disclosed is a solid polymer electrolyte unit, an electrolytic cell containing the unit, and an electrolytic process utilizing the unit. The solid polymer electrolyte unit has anodic and cathodic means contacting opposite surfaces thereof, and is characterized by the structure of the cathode. The cathode removably and compressively bears upon the permionic membrane, and is a microporous, metallic cathode.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: July 19, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Permionic membrane electrolytic cell
    Patent number: 4389297
    Abstract: Disclosed is a zero gap permionic membrane electrolytic cell where at least one electrode has hydrophilic resin bonded to the electrocatalyst and interposed between the electrocatalyst and the permionic membrane. This excludes electrolyte therefrom, reduces the likelihood of perforation of the permionic membrane, and provides enhanced electrical contact.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: June 21, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Solid polymer electrolyte cell
    Patent number: 4381983
    Abstract: Disclosed is a solid polymer electrolyte having anode means in contact with the anodic portion thereof, and cathode means in contact with the cathodic portion thereof. The anodic portion has higher cation selectivity than the cathodic portion, whereby to prevent migration to the anolyte of hydroxyl ion evolved in or on the membrane. Also disclosed are an electrolytic cell containing the solid polymer electrolyte, and an electrolytic process utilizing the solid polymer electrolyte.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: May 3, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Electrolytic process including recovery and condensation of high pressure chlorine gas
    Patent number: 4370209
    Abstract: Discloses the electrolysis of aqueous alkali metal halides while maintaining the anolyte compartment at an elevated pressure, whereby to recover chlorine therefrom at a superatmospheric partial pressure. The superatmospheric partial pressure chlorine gas is recovered from the cell and condensed.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: January 25, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Wilmer B. Graybill, Malcolm Korach
  • Method of preparing a cathode-diaphragm unit
    Patent number: 4366041
    Abstract: Disclosed is a method of cathode-diaphragm where the cathode is coated with a protective film, and thereafter a diaphragm is deposited thereon.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: December 28, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Malcolm Korach, Ronald D. Chamberlin
  • Cathode element for solid polymer electrolyte
    Patent number: 4345986
    Abstract: Disclosed is a solid polymer electrolyte unit, an electrolytic cell containing the unit, and an electrolytic process utilizing the unit. The solid polymer electrolyte unit has anodic and cathodic means contacting opposite surfaces thereof, and is characterized by the structure of the cathode. The cathode removably and compressively bears upon the permionic membrane, and is a microporous, metallic cathode.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: August 24, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Process for electrolyzing an alkali metal halide
    Patent number: 4299675
    Abstract: Disclosed is a zero gap permionic membrane electrolytic cell where at least one electrode has hydrophilic resin bonded to the electrocatalyst and interposed between the electrocatalyst and the permionic membrane. This excludes electrolyte therefrom, reduces the likelihood of perforation of the permionic membrane, and provides enhanced electrical contact.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: November 10, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Process for electrolyzing an alkali metal halide using a solid polymer electrolyte cell
    Patent number: 4299674
    Abstract: Disclosed is a solid polymer electrolyte having anode means in contact with the anodic portion thereof, and cathode means in contact with the cathodic portion thereof. The anodic portion has higher cation selectivity than the cathodic portion, whereby to prevent migration to the anolyte of hydroxyl ion envolved in or on the membrane. Also disclosed are an electrolytic cell containing the solid polymer electrolyte, and an electrolytic process utilizing the solid polymer electrolyte.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: November 10, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Solid polymer electrolyte chlor-alkali process and electrolytic cell
    Patent number: 4273629
    Abstract: Disclosed is a bipolar unit for a solid polymer electrolyte bipolar electrolyzer. Also disclosed is a bipolar unit for a solid polymer electrolyte bipolar electrolyzer having reagent feed and product recovery means incorporated therein. Additionally, there is disclosed a cathode depolarization catalyst.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: June 16, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Malcolm Korach
  • Treatment of asbestos diaphragms and resulting diaphragm
    Patent number: 3991251
    Abstract: Disclosed is a method of preparing an asbestos diaphragm where alkali metal ions are provided from an aqueous alkaline solution within the fibrous asbestos diaphragm, the diaphragm is heated to form an alkali metal silicate layer on the asbestos fibers, and thereafter contacted with anolyte liquor.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: November 9, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Robbie T. Foster, William B. Darlington, Malcolm Korach